Zobrazeno 1 - 9
of 9
pro vyhledávání: '"E. N. Wells"'
Autor:
J. R. Rohde, E. N. Wells, Douglas G. Currie, P. Kenneth Seidelmann, John L. Hershey, Dan Pascu, Alex D. Storrs
Publikováno v:
Icarus. 185:487-491
BVI photometry of Triton and Proteus was derived from HST images taken in 1997. The VEGAMAG photometric technique was used. Triton was found to be brighter by a few percent than observations of the 1970's and 1980's, as expected due to the increasing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef64a77ed2bb1cbc8fb31e356790c88f
https://doi.org/10.1016/j.icarus.2006.07.020
https://doi.org/10.1016/j.icarus.2006.07.020
Autor:
Amanda S. Bosh, P. Kenneth Seidelmann, Douglas G. Currie, E. N. Wells, J. R. Rohde, John L. Hershey, Dan Pascu, Alex D. Storrs, B. Zellner
Publikováno v:
The Astronomical Journal. 127:2988-2996
Six small inner satellites of Neptune were imaged in 1989 with Voyager 2. In 1997, we recovered the four outermost with the Hubble Space Telescope (HST) Wide Field Planetary Camera 2 for astrometric, dynamical, and photometric studies. The ring arcs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e264dc98e9ebc2d911cbeecd8c48429
https://doi.org/10.1086/383548
https://doi.org/10.1086/383548
Autor:
J. R. Rohde, Alex D. Storrs, Douglas G. Currie, Dan Pascu, D. M. Dowling, E. N. Wells, P. Kenneth Seidelmann, Charles T. Kowal, B. Zellner
Publikováno v:
The Astronomical Journal. 115:1190-1194
The 10 small inner satellites of Uranus were discovered in 1986 with Voyager 2 and not seen again until 1994, when eight were recovered with the Hubble Space Telescope Wide Field Planetary Camera 2 for astrometric, dynamical, and photometric studies.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::197014c324c5c98afb432f9dafb863bf
https://doi.org/10.1086/300245
https://doi.org/10.1086/300245
Autor:
Peter C. Thomas, E. N. Wells, Alex D. Storrs, B. H. Zellner, Richard P. Binzel, Michael J. Gaffey
Publikováno v:
Science. 277:1492-1495
Hubble Space Telescope images of asteroid 4 Vesta obtained during the favorable 1996 apparition show an impact crater 460 kilometers in diameter near the south pole. Color measurements within the 13-kilometer-deep crater are consistent with excavatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fa2cf244969c5ec9380799460ba4213
https://doi.org/10.1126/science.277.5331.1492
https://doi.org/10.1126/science.277.5331.1492
Autor:
E. N. Wells, Michael J. Gaffey, Rudolph Albrecht, Peter C. Thomas, Alex D. Storrs, B. H. Zellner, Richard P. Binzel
Publikováno v:
Icarus. 128:83-87
The Planetary Camera of the WFPC2 on board the Hubble Space Telescope was used in late 1994 to record 56 images of Asteroid 4 Vesta in four compositionally diagnostic wavelength bands. The images were taken at eight epochs to give global coverage of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a98413b42351095e962287e99c5f86c7
https://doi.org/10.1006/icar.1997.5735
https://doi.org/10.1006/icar.1997.5735
Autor:
E. N. Wells, Alex D. Storrs, Peter C. Thomas, Michael J. Gaffey, B. H. Zellner, Richard P. Binzel
Publikováno v:
Icarus. 128:88-94
HST images obtained over an interval of 71 hr at a scale of 52 km/pixel have been used to determine the spin pole, size, and shape of Vesta. Several bright and dark surface features allow control point stereogrammetric measurement of spin pole orient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dab42266054658fcc970aeca6c45d24
https://doi.org/10.1006/icar.1997.5736
https://doi.org/10.1006/icar.1997.5736
Autor:
Peter C. Thomas, Richard P. Binzel, E. N. Wells, B. H. Zellner, Michael J. Gaffey, Alex D. Storrs
Publikováno v:
Icarus. 128:95-103
We utilize the 56 images of Asteroid 4 Vesta obtained through four mineralogically diagnostic filters by the Hubble Space Telescope (Zellneret al.1997,Icarus) to construct a geologic map. Vesta's surface is found to be geologically diverse and to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d91e990c4e789b7d1676a8c3f5809e0
https://doi.org/10.1006/icar.1997.5734
https://doi.org/10.1006/icar.1997.5734
Autor:
P. K. Seidelmann, B. H. Zellner, Dan Pascu, Douglas G. Currie, D. M. Dowling, J. R. Rohde, E. N. Wells, C. T. Kowal, Alex D. Storrs
Publikováno v:
Dynamics and Astrometry of Natural and Artificial Celestial Bodies ISBN: 9789401063302
Only the Hubble Space Telescope (HST) can detect about 20 of the faint satellites discovered with the two Voyager spacecraft. We describe here the techniques used in obtaining astrometric positions of the inner satellites of Uranus with the Wide Fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fea6ad65af2f1c0e4b4816db98f9f0aa
https://doi.org/10.1007/978-94-011-5534-2_74
https://doi.org/10.1007/978-94-011-5534-2_74
Publikováno v:
Science. 167:745-747
Optical properties of the pulverized crystalline rocks from the Apollo 11 samples are different from the optical properties of lunar soil. Changes in these properties were induced in the samples by ultraviolet and x-irradiation, standing, and heating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d80132237d8200fb00a16be9d074da79
https://doi.org/10.1126/science.167.3918.745
https://doi.org/10.1126/science.167.3918.745